N U M B E R O N E 1 9 9 3
VSL and its Environment on the Move
1993 willmarketsimportant yearcrossEurope. The European Community opens
border activity without major restrictions.
The home country of our Group Headquarters recently in a vote said no to Europe.
Fortunately, VSL has for a long time confirmed its capability for cross border activity
and will not be affected by that vote. VSL has also proven its flexibility to adapt to a
changing environment as well as to accept new challenges. As per January 1st, 1993,
VSL Europe has been divided into two operating units. The new operating unit
VSL Western Europe covers France, Benelux, Spain, Portugal, Italy and the United
Kingdom. The new unit is headed by Pierre Bron, a long-standing VSL leader, with Pierre Bron
the Regional Headquarters at Arpajon near Paris.
The remaining part of Europe belongs to the operating unit VSL Eastern Europe,
headed by Frédéric Regard, with its Regional Headquarters unchanged at Lyssach
in Switzerland. That operating unit includes the newly opened VSL Office in Prague
under the direction of Miroslav Vejvoda. Miroslav was bot in Czechoslovakia and has
been with VSL for many years, with his last assignment as Branch Manager of VSL
The VSL Prize is a recently issued competition for graduates from Swiss Federal
Institute of Technology Zurich (ETHZ). The topic for the thesis in 1992, defined and
guided by Prof. Dr. Peter Marti, was the construction of a bridge including all aspects
of design, statics and construction. The winner of the 1992 prize, Armand Fürst, has
given an innovative solution in a promising direction. It is the use of different mate-
rials combined with post-tensioning in order to obtain an optimum technical, aesthe-
tical and economical structure. Armand Fürst's solution is in fine with VSL's aim†:
To encourage a creative corporate culture which brings optimized construction solu-
tions to you, our dear reader and construction partnert!
Reto Jenatsch Armand Fürst
Group Chief Executive Officer
Highlights of this Issue:
4 VSL joins forces with LCL PARAFIL
for non-metallic tendons
7 A post-tensioned raft slab for the
Hilton Hotel in Guam
8 VSL Hong Kong's involvement in
Asia's tallest building
11 A 20th Century Master Piece in
Cover 15 6550 VSL permanent fully corro-
It is not modern art – it is the fac of VSL’s new post-tensioning sion protected rock anchors at
COMPOSITE SYSTEM Atatürk Dam
The Evolution of Technology VSL
Durability of Post-Tensioned Concrete Questioned
The new VSL COMPOSITE SYSTEM gives the answer.
In its CS-PLUS configuration a unique plastic duct and plastic trumpet system
integrated with the anchorages provides complete encapsulation of the post-
tensioning steel. In its CS-SUPER configuration even electrically isolated tendons are
Combined with the VSL Vacuum Grouting method and the VSL Electrical
Resistance Measurement method, the VSL COMPOSITE SYSTFM allows for
significant improvement in the quality of new construction as well as for monito-
ring of the tendons during their full design life lime.
With the press release of September
25, 1992, the British Department
of Transport is banning grouted post-
tensioning for new construction. The
main area of concern is corrosion of
the prestressing steel resulting from
improperly grouted tendon ducts.
The VSL Prize goes to a Composite Construction
The VSL Prize 1992 (see Editorial) was
awarded to a bridge project which
combines concrete. steel and post-
tensioning in a very original way.
Converting Research into Reality
or a leading specialist contractor like metallic tendons in the future should not corrosion and chemical resistance of
F VSL it is imperative to keep up with
the rapid development of new materials
be under-estimated. Thanks to their low
specific weight and high tensile strength
non-metallic tendons makes them ideally
suited for structures in aggressive
and technologies. Among the develop- non-metallic tendons coula be used for environments. Savings on elaborate
ments VSL bas taken a serious interest in long stay cables or suspension cables, corrosion protection systems can be
are non-metallic tendons. While still rarely where steel cables would be at their limit expected when non-metallic tendons are
specified today, the potential of non- due to their self weight. The excellent used. Other potential applications are
structures where high magnetic fields
would interact with conventional steel
reinforcement, such as magnetic
monorail train viaducts, or where the
presence of steel reinforcement would
adversely affect the use of the struc-
ture, such as floors supporting highly
sophisticated computer equipment.
In 1991 VSL obtained samples
of PARAFILI tendons (a product made by
the British company "Linear Composites
Ltd") in order to carry eut some
preliminary testing. PARAFIL cables
consist of a tightly packed core of parallel
aramid yarns le-g- Kevlar 49) encased in
an extruded sheath which provides
shape, toughness and mechanical
protection. The tendons are anchored by
means of special mechanical
terminations based on the spike and
cane principle. The primary objective of
the test was to gather first-hand
experience with PARAFIL tendons, in
particular the practical handling and
stressing of the tendons and their
anchorages. A further objective of the
test was to determine the friction losse-
soccurring when stressing a PARAFIL
tendon that is deviated over a saddle,
and the behaviour of the sheath mate-
rial in the saddle region. Finally, the test
was to demonstrate the long-term beha-
viour of a stressed PARAFIL tendon.
A 7.6 m long sample with a nominal
breaking load of 600 kN was tested in
the VSL testing facility in Lyssach (near
Berne). The tendon was deviated by
17.8° over a steel saddle with a 2.5m
radius. Bath tendon ends were connec-
ted to hydraulic jacks through special
couplers. With this arrangement the
tendon coula first be stressed to 40 %
of its nominal capacity, and then pulled
1 PARAFIL is a registered Trade Mark of
Linear Composites Ltd.
through a total of 640 mm in one a long-term load test was carried out by
direction, thus simulating the elongation keeping the load constant at 40 % of the The encouraging conclusions of a
of a long external prestressing tendon nominal breaking load over a period of test on a PARAFIL cable prompted
being stressed. Trie tendon was pulled 11 days, in order to determine the VSL to sign a cooperation agreement
back and fortin 3 times in this way, giving creep behaviour of the material. with Linear Composites Ltd (LCL) to
a total relative movement with respect to jointly market VSL-LCL PARAFIL
the deviation saddle of 1.92 m. Finally, tendons world wide. Targeted
The test showed that handling, stressing
applications will be unbonded
and anchoring of PARAFIL cables are
prestressing tendons for concrete
suitable for practical applications as
structures, such as bridges,
unbonded prestressing tendons, and that
buildings, masts and towers, storage
the sheathing material ares not suffer
tanks, etc. The tendons could be
any damage from extensive movement
either inside or external to the con-
over a deviation saddle under load.
crete section. Initially tendons with
nominal breaking loads of l'000 kN,
2'000 kN and 3'000 kN will be
Dr. Franz Zahn available.
VSL International Ltd.
VSL-LCL PARAFIL tendons have
• excellent corrosion resistance
• high resistance against abrasion
• excellent chemical resistance
• high resistance against ultra-vio-
• excellent fatigue characteristics
• safety over a wide temperature
The high durability of VSL-LCL
PARAFIL tendons ensures a long
and essentially maintenance free
life. The tendons are fully pre-fabri-
cated and delivered to site on coils.
Extensive testing both by the
manufacturer and by independent
testing laboratories has been carried
out, including tests of concrete
beams with PARAFIL as external
prestressing tendons. The VSL-LCL
PARAFIL Tendons are now ready for
South East Asia / Australia
Tawisakale Workshop & Warehouse, Metway
Porgera PNG Centre
lough Engineering, in joint venture The building used a 300 mm thick slab he Metway Centre project is currently
C with Brice Engineers and with
assistance from VSL Australia won a
on grade construction measuring
110 m x 44 m. It was post-tensioned in
T being constructed by F.A. Pidgeon
& Son Pty. Ltd. and on completion will
major workshop and warehouse at the borin directions with bonded tendons at become the head office of the Metway
Forgera gold mine in the highlands of 1200 mm centres and constructed in 5 Bank Group in Brisbane, Queensland.
Papua New Guinea. The workshop and pours. VSL was awarded the post-tensioning of
warehouse serves as a maintenance faci- the floors and transfer beams as well as
lity for mining trucks up to 250 tonnes the temporary and permanent rock
gross weight. Project consulting engi- Barry Story anchor works associated with the foun-
neers, Bonacci Winward, also chose VSL Prestressing (Aust.) Pty. Ltd. dation excavation.
permanent VSL Stressbar anchors for Geebung, QLD, Australia
the Vierendeel core frame warehouse The structure is a 22 storey office tower
support to provide resistance against with the typical floors constructed using
transverse earthquake forces. 400 mm deep post-tensioned beams
which span 11.5 m between edge beam
Post-tensioning slab on grade provides and core walls and columns. Transfer
strength and durability. beams at the Mezzainine level and level
17 use up to five 27x12.7 mm strand
tendons to accommodate changes in
the building plan area.
VSL Prestressing (Aust. ) Pty. Ltd.
A contract package of post-tensionig and
ground anchors for VSL.
Geebung, QLD, Australia
VSL’s foundation alternative improved constructability
Hilton Hotel Guam 1992
oundation Raft†: A twelve storey The slab was constructed in three pours 65 feet and were post-tensioned with 5
F extension to the existing Hilton Hotel
un Guam had the foundation designed
and was stressed in one operation.
Stage stressing was not required as
No. 27 x 12.7 mm strand cables.
as a reinforced concrete mat with beam transfer condition was satisfied by utili- VSL offered a flat slab alternative deleting
depths of nine feet and an average slab sing concrete depths and strategic the "linking" beams thus greatly simpli-
thickness of three feet. This posed a major profiling of the cables. fying the formwork and reducing the total
problem as the expected water table material content. The post-tensioned 12
depth below the top of the slab during Transfer Beams – Level Four†: inch slab spanning the 35 feet between
construction was estimated at six feet. The Level 4 slab was the junction bet- main beams was reinforced with 5 x
ween the non typical levels (restaurants, 12.7 mm strand slab cables at 40 inch
Responding to the Contractor's request, ballroom etc) and the typical hotel suite centres. The slab was constructed in
VSL designed an alternative post-ten- levels. The slab was designed utilising three pours and stressed in two stages.
sioned raft slab which kept the sortit of three main post-tensioned beams linked The first stage allowed the full stressing
the beams above the high water mark, with reinforced beams spanning 35 feet of the flat slab and the complete remo-
significantly reduced material content and to carry the load of the typical walls val of all formwork and backpropping.
allowed for a normal construction procedu- above to the main beams. This allowed early access for finishing
re to be followed without the need for the trades and the on site storage of mate-
dewatering of excavations. The ground The two outer main beams have a rials.
beams were typically reinforced with 5 maximum span of 52 feet and each
No. 27 x 12.7 mm strand cables in each was post-tensioned with 5 No. 25 Ian Craigie
with the slab stressed with 12 x 12.7mm x12.7 mm strand cables. The central VSL Prestressing (Guam) Inc.
strand cables at five feet centres. main beams have a maximum span of Guam
North East Asia
reaches New Heights
SL Fngineers (HK) Ltd. successfully The VSL (HK)
V completed the erection of a 125 tonne
steel mast making the 78 storey Central
team at the top
guide prior to
Plaza, Asia's tallest building (378.4 m).
VSL was responsible for the engineering
method, fabrication, on site assembly
and erection of the 69 metre long mast.
Prefabricated segments (up to 10 tonnes
each) were delivered to site and lifted
one by one to the top of the building.
The mast sections were then assembled
and welded together inside a tilt (eleva-
tor) shah at the 69th floor. The fully
assembled mast was lifted vertically 47
meters to its final position using VSL
Heavy Lifting jacks.
The erection of this mast within 10 Central Plaza
mm of its theoretical position is a tes- dominates the
tament to VSL'S commitment to quali- Wanchai waterfront
ty engineered solutions.
Michael Phillips, Mobashir Zia
VSL Engineers (HK) Ltd.
Central Plaza illuminated.
VSL Redland –
Off and running at the Royal Hong Kong Jockey Club
ssue Number One, 1992, of VSL News Job coordination, production and deli- Elements were manufactured at our
Iannounced the birth of VSL Redland.
With this issue, we can announce VSL
very planning were clone by our Hong
Kong office. Design and sirop dra-
facilities near Macau and were barged
and then trucked to the project site in
Redland's "baptism under fire". wings were clone by Holmes Hong Kong.
Consulting Group in New Zealand.
This company's first contract was to The architects for the project are
supply prestressed beams and pres- Hellmuth, Obata and Kassabaum of
tressed bleachers for the Royal Hong VSL Redland shapes up new stadium. Kansas City, Missouri, the engineers
Kong Jockey Club Stadium are Ove Arup & Partners of Hong
Redevelopment. Some 300 beams Kong and the Contractors are
and 1350 bleacher units were manufactured Dragages et Travaux Publics Limited
and delivered between May and De- of Hong Kong plus their foundation
cember 1992. subsidiary Intrusion Prepakt (Hong
VSL Redland was responsible for
both design and manufacturing. Some
130 different beam types, approxima-
tely 900 different bleacher types, a
VSL Redland Concrete Products Ltd.
fast track schedule and an internatio-
nal cast of players made this a chal-
North East Asia
Giant Safety Wall
for Cryogenic Tank
SL Japan is nearing completion of
V a safety wall for a new 43,000
tonne capacity LPG tank. The project
is at the GFNFRAL OIL COMPANY'S
Kawasaki tank farm facilities. The safe-
ty wall provides protection for the steel
tank. It will also contain a spill in the
event of a steel tank leak or failure.
The 550 mm thick safety wall is post-
tensioned horizontally and vertically.
The clearance between the post-ten-
sioned safety wall and the 59.6 m dia-
meter x 30.7 m high steel tank is a
mere 1.3 m.
VSL Japan Corporation
Safety wall takes shape with tendons.
Post-Tensions Parking Tower
HIBA SHlNMACHl'S 19 storey multi-use facility contains
C car parking areas for 1800 cars on the 5th to 17th floors.
A detached external spiral ramp provides access to the 5th
floor, along with an internal spiral ramp at the center of the
The cylindrical tower walls are slipformed cast-in-situ
concrete. Ramps consist of precast fan-shaped ribbed seg-
ments. Radial tendons in the ribs stress the precast
concrete ramps to the cast-in-situ walls. For continuity, seg-
ments were stressed with circumferential tendons located
along the edge of the ramp way.
VSL Japan Corporation
VSL tendons integrate into multi discipline construction.
New Elevated Freeway Access Ramps utilize
VSL External Tendons
onstruction is currently under way (16 km) stretch of the highway will design and supply of the post-tensio-
C on the widening and modernization
of the highly congested Noah Central
include new highway interchanges,
additional roadway, improved highway
ning system used in two ramp bridges
within the first phase of the project.
Expressway in Dallas, Texas. This ambi- access and below grade transit tunnels.
tious, 10-year project along a 10-mile VSL was awarded the contract for the Each bridge utilizes a single-cell box
girder configuration with both longitudinal
and transverse post-tensioning. The
bridges are cast-in-place on falsework
and are comprised of 17 individual
spans with a total length of 1,980 ft.
(604m). The longitudinal tendons
consist of both embedded and external
grouted multistrand tendons while the
transverse road-deck tendons utilize
individually grouted monostrands.
Michael G. Powell
Grand Prairie, Texas
Transverse road-deck grouted monostrands
utilize custom fabricated anchorages.
A 20 th Century Master Piece is Completed in Colorado
he final segment of Interstate faces to match the existing, bas given materials for numerous box girder
T Highway 70 bas been completed in
a remote area of Colorado near
the project the reputation of being one
of the great pieces of public architec-
bridges, rock anchors, and miles of
cantilevered roadway slabs.
Glenwood Springs, 160 miles (260 km) ture of the 20th century.
west of Denver. Culminating over twel-
ve years of continuous construction, VSL'S involvement included the sup-
the final 12 mile (19.5 km) section of ply and installation of post-tensioning
four fane traffic in Glenwood Canyon Denver, Colorado
was recently opened at a total cost of
approximately $ 484 million US.
The distinguishing characteristic of the
Glenwood Canyon project bas been
its extremely limited access in an envi-
ronmentally sensitive area. The
Colorado River Gorge is over 2000 ft.
(600 m) deep with vertical walls of
weathered granite on both sides†;
during initial planning it was conside-
red by critics to be far too narrow to
accommodate an interstate route.
Environmental restoration, including
extensive revegetation and terracing
and staining of fractured rock sur-
VSL a part of Interstate Highway’s Quality.
Post-Tensioning helps Minnesota Bridge
carry more Lanes
hen the State of Minnesota decided
W to strengthen and extend the pier
caps on the Blatnik Bridge in Duluth,
Minnesota, to accommodate an additio-
nal north and south traffic fane, post-
tensioned concrete was selected as the
preferred method of strengthening the
extended pier caps.
The bridge spans more than 8,000 ft.
(2,440 m) between abutments. -
Thirty-nine of the existing 43 pier caps
will be strengthened longitudinally and
transversally with post-tensioning ten-
dons. Construction began in the
summer of 1992, with completion
anticipated in spring 1993.
VSL'S value-added approach reduced
the quantity of transverse tendons by
33 % and represented significant time
and construction savings. In addition
to proposing and implementing the
reduction in transverse tendons
VSL'S services include furnishing the
stressing and grouting equipment,
and providing technical assistance.
VSL adds value to this bridge augmentation.
Europe / Middle East VSL
Storebaelt West Bridge progressing well
hen completed, the bridge and Switzerland. Many of the more than 100 first hand view of the impressive bridge
W tunnel connections being built
across Denmark's Storebaelt to connect
Swiss visitors were or are working on
this project. The site visit included a tour
the islands of Fyn and Sjaelland will have of the 3 km2 prefabrication yard and
VSL (Switzerland) Ltd.
a major influence on the country's traffic, gave the participants an unforgettable,
permitting approximately 13'000 cars and
Denmark’s link is half way.
200 trains to cross the Belt daily.
One of the main elements of this project
is the Storebaelt West Bridge, a 6.6 km
long road and rail bridge built from post-
tensioned concrete by the European
Storebaelt Group (ESG). The bridge will
have a navigation clearance of 18 m and
consists of 51 spans of approximately
110m and 12 spans of 81 m. The tender
design of the road and rail superstruc-
tures was clone by VSL engineers and
the post-tensioning is being performed by
VSL Storebaelt J.V., a joint venture bet-
ween VSL (Switzerland) Ltd. and
Internordisk Sp‡nnarmering NB, the
Scandinavian licensee of VSL. VSL is
supplying a total of over 12'000 tonnes of
In August 1992, half-completion of the
structure coincided with the visit of a
large group of VSL staff from
Retained Earth gets a Start in Europe
ith the award of earth retaining
W walls on the A5-Auto Estrada da
Costa do Estoril in Portugal VSL
Prequipe had been successful in intro-
ducing the first application of Retained
Earth in Europe. Wall construction
began in June 1992 and is now well
underway. VSL Prequipe has thus far
secured additional contracts for a
combined total area in excess of
VSL (Switzerland) Ltd. is actively mar-
keting the Retained Earth System in
several European countries, Africa
and the Middle East.
Isam S. Sahawneh
VSL (Switzerland) Ltd.
Lyssach, Switzerland Retained Earth panels support embankment of a widened highway in Portugal.
Europe / Middle East
VSL Lifts Water Tower
he Maikkula Water Tower in Oulu, Finland, was planned
T and built by the Town Council to increase the capacity of
the towns water supply by 4'000 m3.
The tower construction required VSL'S Heavy Lifting
Capability. The water tank has an overall diameter of
approx. 40 m and a depth of approx. 11 m. The total weight
of the tank (ind. the supporting columns) is in excess of
3000 tonnes and the overall height of the tower is 55 m.
VSL strand lifting units were used to tilt the tank in two stages.
In a first stage it was lifted approx. 13 m to install the concrete
encased steel columns supporting the water tank. In a second
stage the tank was lifted another 23 m. Alter pouring the lower
ring beam to support the columns the load of the tank was
transferred from the VSL lifting units to the concrete structure.
The aesthetically pleasing results speak for themselves.
VSL (Switzerland) Ltd.
Lyssach, Switzerland VSL heavy lifting serves the needs of this water tower construction.
CMC Methanol Plant Point Lisas, Trinidas –
An Application of VSL Heavy Lifting
part of Trinidad's natural gas reserves are converted
A into Methanol. TO increase the production capacity
of the Point Lisas complex, a second plant is presently
being built. VSL Heavy Lifting participated in this project.
The equipment of the plant comprises 2 major vessels. One
is a free-standing refining column of 340 tonnes weight and
63 m height†; the other, rather stocky convertor vessel of 250
tonnes sits on an 8 m high concrete pedestal. While smaller
vessels were placed by means of the 150 tonne crawler
crane available on site, contracter Proman of D¸sseldorf had
to contact a heavy lifting specialist for the 2 heavier vessels.
VSL submitted a proposai for a tower lifting system without
guy wires, which found the approval of the contractor.
VSL designed temporary steel gantries which are based
on a modular tower system. These were constructed of
standard and custom made beams and components. For
the lifting of the vessels, VSL used its proven and
reliable hydraulic strand lifting system. Erection of the
temporary structures was supervised by VSL and carried
out by Proman, with local workforce.
VSL (Switzerland) Ltd.
Lyssach, Switzerland VSL Lifting Towers without guy wires solve Trinidad Lifting problem.
The Word’s largest Rock Anchor Job nears Completion
he Atat¸rk Dam and Hydroelectric
T Power Plant, located on the
Euphrates river in the south eastern part
of Turkey, is arguaby one of the largest
rockfill dams in the world. The spillway
has a maximum water discharge
capacity of 17'000 m3/sec.
The base slab of the stilling basin,
side and end walls are secured by
more than 6550 VSL permanent fully
corrosion protected rock anchors,
varying from 6 to 17 strands with an
average length of 20 meters.
Atatürk Rock Anchor Testing Programme
37 pull-out tests
24 suitability tests
54 comprehensive production anchors
183 monitored (short term) production
anchors All production anchors proof loaded
to 80 %
Harsh climatic conditions and extreme
dusty site conditions, further exacerba- Spillway and stilling basin. Ground anchors with a VSL packer being
ted by dust generated from the down ñ sion protection of the free length of a homed.
the hole - hammer drilling rigs, combi- considerable number of anchors. A
ned to make working conditions most packer that permitted pressure grou-
demanding. Additionally, the extreme ting of the anchors was specially deve- Robert Baumann
artesian water conditions encountered loped to overcome this problem. VSL (Switzerland) Ltd.
would have put to question the corro-
Atatürk Dam has an embakment volume in excess of 84 million cubic meters.
PUBLISHED BY VSL International Ltd., P.O. Box 7124, CH – 3001 Berne / Switzerland, Tel 41 - 31 - 66 42 22, Fax 41 - 31 66 42 50
Editor: Therese Wenger
ADRESSES OF VSL COMPANIES AND LICENSEES
SOUTH EAST ASIA / AUSTRALIA GUAM NEW ZEALAND
AUSTRALIA VSL Prestressing (Aust.) Pty. Ltd. VSL Prestressing (Guam), TUMON Precision Precasting (Wgtn.) Ltd.
VIRGINIA, QLD Tel 67 - 1 - 646 80 61 OTAKI
AUSTRALIA Tel 61 - 7 - 265 64 00 Fax 67 - 1 - 649 08 50 Tel 64 - 694 81 26
VSL Prestressing (Aust.) Pty. Ltd. Fax 61 - 7 - 265 75 34 Fax 64 - 694 83 44
6 Pioneer Avenue
Thornleigh, NSW 2120 VSL Prestressing (Aust.) Pty. Ltd. INDONESIA SINGAPORE
PT VSL Indonesia, JAKARTA VSL Singapore Pte. Ltd., SINGAPORE
Tel 61 - 2 - 484 59 44 NOBLE PARK, VIC
Tel 61 - 3 - 795 03 66 Tel 62 - 21 - 570 07 86 Tel 65 - 235 70 77/9
Fax 61 - 2 - 481 01 60 Fax 65 - 733 86 42
Fax 61 - 3 - 795 05 47 Fax 62 - 21 - 581 217
BRUNEI DARUSSALAM MALAYSIA VSL (Thailand) Co., Ltd., BANGKOK
VSL Systems (B) Sdn. Bhd. VSL Engineers (M) Sdn. Bhd. Tel 66-2-237 32 88/89/90
BANDAR SERI BEGAWAN KUALA LUMPUR Fax 66-2-238 24 48
Tel 673 - 2 - 22 91 53, - 22 18 27 Tel 60 - 3 - 242 47 11
Fax 673 - 2 - 22 19 54 Fax 60 - 3 - 242 93 97
NORTH EAST ASIA HONG KONG JAPAN TAIWAN
VSL Engineers (HK) Ltd. VSL Japan Corporation, TOKYO VSL Systems (Taiwan) Ltd., TAIPEI
HONG KONG WANCHAI / HONG KONG Tel 81 - 33 - 346 89 13 Tel 886 - 2 - 707 72 53
VSL North East Asia Tel 852 - 520 16 00 Fax 81 - 33 - 345 91 53 Fax 886 - 2 - 704 04 63
Regional Office Fax 852 - 865 62 90
Bank of America Tower, Suite 1407
12 Harcourt Road VSL Redland Concr. Prod. Ltd. KOREA
Central, Hong Kong WANCHAI, HONG KONG VSL Korea Co., Ltd., SEOUL
Tel 852 - 537 93 90 Tel 852 - 598 72 28 Tel 82 - 2 - 574 - 82 00
Fax 852 - 537 95 93 Fax 852 - 598 50 87 Fax 82 - 2 - 577 00 98
NORTH AMERICA USA VSL Corporation VSL Corporation LYNNWOOD, WA
USA VSL Corporation NORCROSS, GA HUNTINGTON BEACH, CA Tel 1 - 206 - 771 30 88
Corporate Office Tel 1 - 404 - 446 - 30 00 Tel 1 - 714 - 894 58 85 Fax 1 - 206 - 672 30 20
VSL Corporation Fax 1 - 404 - 242 74 93 Fax 1 - 714 - 894 88 96 VSL Corporation SPRINGFIELD, VA
1671 Dell Avenue Tel 1 - 703 - 451 43 00
Campbell, CA 95008 VSL Corporation GRAND PRAIRIE, TX VSL Corporation MIAMI, FL Fax 1 - 703 - 451 08 62
Tel 1 - 408 - 866 67 77 Tel 1 - 214 - 647 - 02 00 Tel 1 - 305 - 592 50 75
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Tel 1 - 303 - 239 66 55 Tel 1 - 612 - 456 09 86 Canadian BBR (1980) Inc.
Fax 1 - 303 - 239 66 23 Fax 1 - 612 - 456 92 81 AGINCOURT, ONT
VSL Corporation EWA BEACH, HI Tel 1 - 416 - 291 - 16 18
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Fax 1 - 808 - 682 28 14 Tel 1 - 215 - 750 66 09
Fax 1 - 215 - 757 03 81
VSL Corporation CAMPBELL, CA
Tel 1- 1 - 408 - 866 50 00
Fax 1 - 408 - 379 62 05
EASTERN EUROPE GREECE NORWAY VSL OFFICE PRAGUE
VSL Systems S.A., ATHENS VSL Norge A/S, STAVANGER Václavské nám$e$sti
SWITZERLAND Tel 30 - 1 - 363 84 53 Tel 47 - 4 - 56 37 01 110 00 PRAHA 1
VSL (Switzerland) Ltd. Fax 30 - 1 - 360 95 43 Fax 47 - 4 - 56 27 21 Tel 42 - 2- 2 - 236 69 92
Bernstrasse 9 Fax 42 - 2 - 236 73 59
Tel 41 - 34 - 47 99 11
Fax 41 - 34 - 45 43 22
WESTERN EUROPE SPAIN PORTUGAL ITALY
VSL Iberica S.A., MADRID VSL Prequipe SA, LISBOA PRECO S.r.l., MILANO
FRANCE Tel 34 - 1 - 556 18 18 Tel 351 - 1 - 793 85 30 Tel 39 - 2 - 481 80 31
VSL France S.à r.l. Fax 34 - 1 - 597 27 01 Fax 351 - 1 - 793 09 01 Fax 39 - 2 - 481 64 15
110 Avenue Verdun
Tel 33 - 1 - 69 26 14 00
Fax 33 - 1 - 60 83 89 95
LICENSEES BRAZIL GREAT BRITAIN PERU
Rudloff-VSL Industrial Ltda. Balvac Whitley Moran Ltd. Pretensado VSL del Peru SA, LIMA
AUSTRIA SAO PAULO LIVERPOOL Tel 51 - 14 - 76 - 04 23, -76 04 26
Sonderbau GesmbH, WIEN Tel 55 - 11 - 826 04 55 Tel 44 - 51 - 549 21 21 Fax 51 - 14 - 76 04 77
Tel 43 - 222 - 892 02 80 Fax 55 - 11 - 826 62 66 Fax 44 - 51 - 549 14 36
Fax 43 - 222 - 892 02 80 33
BOLIVIA CHILE INDIA Steeledale Systems (Pty.) Ltd.
Prestress VSL of Sistemas Especiales de Killick Prestressing Ltd., BOMBAY JOHANNESBURG
Bolivia Jauregui Ltd., LA PAZ Construccion SA, SANTIAGO Tel 91 - 22 - 578 44 81 Tel 27 - 11 - 613 77 41/9
Tel. 591 - 2 - 321 874 Tel 56 - 2 - 233 10 57 Fax 91 - 22 - 578 - 47 19 Fax 27 - 11 - 613 74 04
Fax 591 - 2 - 371 493 Fax 56 - 2 - 231 12 05
Civielco B.V., AT LEIDEN Internordisk Spännarmering AB
Tel 31 - 71 - 76 89 00 DANDERYD
Fax 31 - 71 - 72 08 86 Tel 46 - 8 - 753 02 50
Fax 46 - 8 - 753 49 73